Wrench.



F. MOSSBERG.

WRENCH.

APPLICATION FILED JUNE 14, 1909.

Patented Feb. 15, 1910 i n ears TO FRANK MOSSBEBQ COMPANY, A CORPORATIONOF RHODE ISLAND,

WRENCH.

To all whom 'it may concern:

Be it known that I, FRANK Mossnnno, a citizen of the United States,residing at Attleboro, in the county of Bristol and State ofMassachusetts, have invented certain new and useful Improvements inWrenches, of which the following is a specification.

My invention relates to wrenches, especially to such as are intended foruse where the nut or other article to be turned is remote or difficultof access, as for instance, spark plugs.

The primary objects of the present invention are to render the wrenchcapable of being folded and arranged compactly when not inuse; to impartadjustability to the handle or cross bar; to provide an effective andfacile means for engaging the shank and socket; and to attain theseobjects in a simple and inexpensive device free of ratchet mechanism.

Other novel features will be hereinafter pointed out and claimed.

In the accompanyin drawings which form a part of this spec'i cation,Figure 1, is a front elevation of my novel wrench, Fig. 2, a sideelevation, Fig. 3, a partial section on line :0 m of Fig. 2, Fig. 4, afront elevation of the shank and handle members in folded position, Fig.5, a side elevation ofthe socket member detached, Fig. 6, a section online g g of Fig. 1, Fig. 7 an enlarged detail of the lower portion ofshank, and Fig. 8, a section of the same on line a e of Fig. 7.

Like letters of reference indicate like parts throughout the views.

My device comprises a solid shank A, in this instance of rectangularcross section. The contour of such section, however, is unessentialexcept. at the lower end, a, where the shank should be polygonal or haveplane sides to perform the function of a tenon. The upper portion of theshank is provided with a transverse or horizontal opening a, throughwhich loosely passes a handle or cross bar B provided near one end witha portion 1) bent at right angles to the body of the bar. Upon the endsof the portions B and b are heads or shoulders I) and b respectively. Avertically disposed cylindrical cavity C in the shank extends to theopening a. A helical spring D in this cav- I ity upwardly presses aslidable pin E, also Specification of Letters Patent. Application filedJune 14, 1909.

Patented Feb. 15, ioio. Serial No. 501,923.

laterally displaced to form slight projec-.

tions y.

A removable socket K has a polygonal body is and a reduced squared orpolygonal neck is; the latter is a sliding fit upon the squared ortion,a,'of the shank A," and is practical y held in engagement therewith bythe ball I. The projections j limit the ex- .cessive upward movement ofthe socket relatively to theshank.

The handle B is maintained in any desired horizontal position by the sring pressed pin E, and its bent portion, 6, acilitates folding theparts as shown in Fig. &.

where the head b abuts against the face of the shank, and preventsaccidental disengagement of the parts.

The socket K is readily separable from the shank, and when not in usemay be placed side by side with the shank in a minimum of space. It isdeemed important that the ball be inserted into the shank and made tooperate outwardly from the radius for by this construction where socketsare made to fit this particular shank, one ball serves to hold all thedifferent sockets.

lVhat I claim is,-

In a wrench, a shank'having at one end a lateral recess, and a springressed ball in said recess, said shank being ormed with a circular beadat the outer end of said recess to retain the ball in position, saidshank above said recess being punctured adjacent opposite margins of theshank face whereby the metal is laterally displaced to form projections.

In testimonywhereof I have afiixed my signature in presence of twowitnesses.

FRANK MOSSBERG. Witnesses:

WALTER LOUIS Fnos'r,

HORATIO E. BELLOWS.

